Make that 100% as he's never alerted to a false positive.
"'False' positives are always a possibility; to date Eddie has not so indicated operationally or in training. In six years of operational deployment in over 200 criminal case searches the dog has never alerted to meat based and specifically pork foodstuffs designed for human consumption. Similarly the dog has never alerted to 'road kill', that is any other dead animal." (M. Grime)
That sentence does not say that Eddie has never reacted where there was no cadaver scent. Read it carefully.
Additionally:
could I ask what the alerts were in PdL. No cadaver residue was found. Does Grime count these as false positives? Why not? If they are not false positives, what are they?
They are cases where Eddie reacted and no cadaver was found. Now there are two possibilities- a cadaver was there and has gone or there was no cadaver there- we have no way of knowing so if we were being honest, these should be counted as false positives!